Identify the correct sentence.

A.
​Once, in​ class, my science teacher juggled the​ chalk, and another time she yodels.
B.
​Once, in​ class, my science teacher juggle the​ chalk, and another time she yodeles.
C.
​Once, in​ class, my science teacher juggle the​ chalk, and another time she yodel.
D.
​Once, in​ class, my science teacher juggled the​ chalk, and another time she yodeled.